单词	Black Monday
释义	Black MondayˌBlack ˈMonday 1Monday, 19 October 1987, the day on which share prices on the stock exchange suddenly fell by a large amount, and many people lost a lot of money2Monday, 28 October 1929, the day on which share prices on the Stock Exchange suddenly fell by a large amount, leading to the great depression of the 1930s
随便看	oceanographer oceanography ocelot och ochre ocker o'clock O Come All Ye Faithful O'Connell, Daniel O'Connor, Sandra Day OCR -ocracy -ocrat -ocratic -ocratically Oct. octagon octagonal octane octave octet octo- October octogenarian octopus

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